UV water quality meter TOC-10

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Product Overview
TOC-10 portable offline TOC analyzer is designed for online and offline testing of pharmaceutical-grade water (including WFI), ultrapure water, deionized water and similar matrices. Based on conductivity-difference technology with UV oxidation, it delivers high precision, fast response and meets regulatory TOC testing requirements.

Applications

• On-line monitoring and laboratory testing of pharmaceutical water (purified water, water for injection) and cleaning validation.
• Environmental monitoring, semiconductor and electronics manufacturing, food and beverage quality control, and other industrial water analyses.

Working Principle
The instrument oxidizes organic contaminants in the sample by UV oxidation to CO2. The dissolved CO2 changes the solution conductivity; TOC is obtained from the conductivity difference between the sample (test) channel and the blank/control channel. Calculation: TOC = TC (test channel) − TIC (control channel).

Product Features

• No consumables required during normal operation (no carrier gas or reagents), reducing operating cost.
• User-friendly color touchscreen interface and large onboard memory for data storage.
• Supports both offline (portable) and optional online operation, with an automatic injector option.
• Portable form factor for field measurements and sampling at multiple locations.
• Automatic alarms when TOC exceeds preset thresholds and electronic user management with signatures.
• High reproducibility enabled by a precision sampling module.
• GMP certified and compliant with Chinese Pharmacopoeia (2010) TOC testing requirements.

Schematic Diagram (Direct Conductivity Method)

• 1. Delay line
• 2. UV lamp and quartz tube
• 3. Conductivity sensor (test tube)
• 4. Conductivity sensor (control tube)
• 5. Pump

Specifications
Model: TOC-10
TOC range: 0.001 mg/L — 1.000 mg/L (1 μg/L — 1000 μg/L)
Conductivity detection range: 0.055 μS/cm — 8.000 μS/cm
Precision: ±3%
Resolution: 0.001 mg/L
Analyzing mode: continuous
Response time: 6 minutes
Detection limit: 0.001 mg/L
Sample temperature range: 1–95 °C
Repeatability error: ≤3%
Power: AC 220V / 50Hz, 100W
Dimensions: 410 × 240 × 315 mm
Weight: 8.5 kg
Display: color touchscreen